Bracket Car Wiring Help

70 Buster 340 said
I used the white streaks to erase the wires not needed off of your drawing.
also ... Note the GND (ground) wire off the NSS.

The MSD gets power from the IGN switch and the Solenoid coil gets energized by the push (momentary) start button.
The coil can't get energized unless the car is in neutral (or park) because the Neutral Starter Switch provides the ground patch for the solenoid coil.

One side of the solenoid coil is hot and the other side is ground ... and ... that is in an open state (not grounded) unless the NSS contacts are closed by the shifter lever in the correct position.

I looked at the picture a couple of times before it clicked that your white lines were meant to delete wires from the diagram ha.

I know it’s hard to tell from my drawing, but what you show here is only one wire going to the starter and you show it going to the small post as I have it drawn. Not sure if that was intentional or not.

I understand that the MSD gets power from
the ignition switch but it has two red power wires. I had the small one to ignition switch and the heavy 12 gauge red to the solenoid for power for the box.

Sorry I know I’m not explaining it well